General description LOUD AND BIG ALARM: The 4-Pack Wireless Door Magnetic Sensor Window Alarm is powerful enough to detect intruders, prevent children and babies from leaving the house, and protect your office, garage, dorm room, or apartment both indoors and outdoors. You can certainly hear it from another room, ensuring you are notified of any potential security breaches. It works effectively on sliding doors, windows, drawers, and refrigerators, providing comprehensive protection against unauthorized access. Technical specifications Type: Wireless Door Magnetic Sensor Alarm Quantity: 4-pack Installation Clean the flat surface where the alarm will be mounted. Peel off the sticker and mount the alarm on the door. Attach the magnetic strip on the doorpost. Installation is complete! Usage Ideal for use in houses, apartments, RVs, offices, hotel rooms, garages, etc. Prevents children and babies from leaving the house without warning. Protects your home from burglars who may enter